When it comes to the viewing angle of industrial displays, some people may not understand what it means. However, when choosing industrial displays, this is also an important reference standard. The following editor will introduce you to the visual angle of industrial displays. problem.
The viewing angle of industrial displays refers to the angle at which users can clearly see all content on the screen from different directions. The light source displayed by the display has a certain directionality when it is output after refraction and reflection, and color distortion will appear when viewed beyond this range. The viewing angle determines the size of the user's viewing range and the best viewing angle. If it is too small, the user will slightly deviate from the front of the screen, and the display will lose color. The viewing angle of 120 degrees is generally used as the purchase standard.
The viewing angle of industrial displays is subdivided into two aspects: horizontal viewing angle and vertical viewing angle. The horizontal viewing angle is based on the vertical normal of the display (that is, the vertical imaginary line in the middle of the display) as the baseline, and the display screen image can still be seen normally at a position on the left or right that forms a certain angle with the vertical normal , This angle range is the horizontal viewing angle of the industrial display; similarly, if the horizontal normal is used as the baseline, the viewing angle of the up and down angle is the vertical viewing angle. Normally, the reference standard for viewing angle is the change of contrast. When the viewing angle is gradually increased, the color contrast of the displayed image seen at this angle will decrease. When the angle is increased to a certain extent and the contrast is lower than 10:1, this angle is the maximum viewing angle of the industrial display.
Most of the viewing angles of industrial displays on the market are left-right symmetrical, but the top-bottom is not necessarily symmetrical. Usually, the top-bottom angle is smaller than the left-right angle. An industrial display with a viewing angle of 80 degrees left and right, standing at a position of 80 degrees perpendicular to the center of the front of the screen can still clearly see the screen image. The larger the viewing angle and the wider the viewing angle, the industrial display has better applicability.
The viewing angle of most industrial displays on the market is above 120 degrees, and some products claim to have reached 180 degrees. It should be pointed out that the nominal value of the viewing angle will be different under different measurement methods. Industrial display manufacturers usually do not indicate the specific measurement method. In general, the viewing angle is a reference value.
The viewing angle of industrial displays is introduced here. As a reference indicator, customers can use it as a reference when purchasing industrial displays, and choose suitable products according to their own needs.
